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<h2><a href="closure_goog_positioning_viewportposition.js.html">viewportposition.js</a></h2>

<pre class="prettyprint lang-js">
<a name="line1"></a>// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);
<a name="line2"></a>// you may not use this file except in compliance with the License.
<a name="line3"></a>// You may obtain a copy of the License at
<a name="line4"></a>//
<a name="line5"></a>//     http://www.apache.org/licenses/LICENSE-2.0
<a name="line6"></a>//
<a name="line7"></a>// Unless required by applicable law or agreed to in writing, software
<a name="line8"></a>// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,
<a name="line9"></a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a name="line10"></a>// See the License for the specific language governing permissions and
<a name="line11"></a>// limitations under the License.
<a name="line12"></a>
<a name="line13"></a>// Copyright 2006 Google Inc. All Rights Reserved.
<a name="line14"></a>
<a name="line15"></a>/**
<a name="line16"></a> * @fileoverview Client positioning class.
<a name="line17"></a> *
<a name="line18"></a> */
<a name="line19"></a>
<a name="line20"></a>goog.provide(&#39;goog.positioning.ViewportPosition&#39;);
<a name="line21"></a>
<a name="line22"></a>goog.require(&#39;goog.math.Box&#39;);
<a name="line23"></a>goog.require(&#39;goog.math.Coordinate&#39;);
<a name="line24"></a>goog.require(&#39;goog.math.Size&#39;);
<a name="line25"></a>goog.require(&#39;goog.positioning.AbstractPosition&#39;);
<a name="line26"></a>
<a name="line27"></a>
<a name="line28"></a>
<a name="line29"></a>/**
<a name="line30"></a> * Encapsulates a popup position where the popup is positioned according to
<a name="line31"></a> * coordinates relative to the  element&#39;s viewport (page). This calculates the
<a name="line32"></a> * correct position to use even if the element is relatively positioned to some
<a name="line33"></a> * other element.
<a name="line34"></a> *
<a name="line35"></a> * @param {number|goog.math.Coordinate} arg1 Left position or coordinate.
<a name="line36"></a> * @param {number} opt_arg2 Top position.
<a name="line37"></a> * @constructor
<a name="line38"></a> * @extends {goog.positioning.AbstractPosition}
<a name="line39"></a> */
<a name="line40"></a>goog.positioning.ViewportPosition = function(arg1, opt_arg2) {
<a name="line41"></a>  this.coordinate = arg1 instanceof goog.math.Coordinate ? arg1 :
<a name="line42"></a>        new goog.math.Coordinate(/** @type {number} */ (arg1), opt_arg2);
<a name="line43"></a>};
<a name="line44"></a>goog.inherits(goog.positioning.ViewportPosition,
<a name="line45"></a>              goog.positioning.AbstractPosition);
<a name="line46"></a>
<a name="line47"></a>
<a name="line48"></a>/**
<a name="line49"></a> * Repositions the popup according to the current state
<a name="line50"></a> *
<a name="line51"></a> * @param {Element} element The DOM element of the popup.
<a name="line52"></a> * @param {goog.positioning.Corner} popupCorner The corner of the popup
<a name="line53"></a> *     element that that should be positioned adjacent to the anchorElement.
<a name="line54"></a> * @param {goog.math.Box} opt_margin A margin specified in pixels.
<a name="line55"></a> * @param {goog.math.Size} opt_preferredSize Preferred size of the element.
<a name="line56"></a> */
<a name="line57"></a>goog.positioning.ViewportPosition.prototype.reposition = function(
<a name="line58"></a>    element, popupCorner, opt_margin, opt_preferredSize) {
<a name="line59"></a>  goog.positioning.positionAtAnchor(
<a name="line60"></a>      goog.style.getClientViewportElement(element),
<a name="line61"></a>      goog.positioning.Corner.TOP_LEFT, element, popupCorner,
<a name="line62"></a>      this.coordinate, opt_margin, null, opt_preferredSize);
<a name="line63"></a>};
</pre>


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